I've got a spark buttonbar w/ a dataprovider as follows: '
<s:ArrayCollection id="arr">
<s:source>
<fx:Object label="Dave" addr="123 Main" />
<fx:Object label="Brenda" addr="456 Center" />
</s:source>
</s:ArrayCollection>
'
By default, the button's labels will be "Dave" and "Brenda", respectively. How can I dynamically change the label to the "addr" field when a user rolls over the button?